diff --git a/radio/src/targets/taranis/hal.h b/radio/src/targets/taranis/hal.h
index 5e8636fac..fad9ec607 100644
--- a/radio/src/targets/taranis/hal.h
+++ b/radio/src/targets/taranis/hal.h
@@ -1959,7 +1959,7 @@
   #define I2C_B1_WP_GPIO_PIN            GPIO_Pin_9  // PB.09
   #define I2C_B1_SCL_GPIO_PinSource     GPIO_PinSource6
   #define I2C_B1_SDA_GPIO_PinSource     GPIO_PinSource7
-  #define I2C_B1_ADDRESS_VOLUME         0x5C
+  #define I2C_ADDRESS_VOLUME            0x5C
 #endif
 #define I2C_B1_CLK_RATE                 400000
 #define I2C_ADDRESS_EEPROM              0xA2
diff --git a/radio/src/targets/taranis/i2c_driver.cpp b/radio/src/targets/taranis/i2c_driver.cpp
index e53c23b6e..6b4e72c3c 100644
--- a/radio/src/targets/taranis/i2c_driver.cpp
+++ b/radio/src/targets/taranis/i2c_driver.cpp
@@ -267,22 +267,22 @@ void setVolume(uint8_t volume)
   if (!I2C_WaitEventCleared(I2C_FLAG_BUSY))
     return;
 
-  I2C_GenerateSTART(I2C, ENABLE);
+  I2C_GenerateSTART(I2C_B1, ENABLE);
   if (!I2C_WaitEvent(I2C_EVENT_MASTER_MODE_SELECT))
     return;
 
-  I2C_Send7bitAddress(I2C, I2C_ADDRESS_VOLUME, I2C_Direction_Transmitter);
+  I2C_Send7bitAddress(I2C_B1, I2C_ADDRESS_VOLUME, I2C_Direction_Transmitter);
   if (!I2C_WaitEvent(I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
     return;
 
-  I2C_SendData(I2C, 0);
+  I2C_SendData(I2C_B1, 0);
   if (!I2C_WaitEvent(I2C_EVENT_MASTER_BYTE_TRANSMITTING))
     return;
-  I2C_SendData(I2C, volume);
+  I2C_SendData(I2C_B1, volume);
   if (!I2C_WaitEvent(I2C_EVENT_MASTER_BYTE_TRANSMITTED))
     return;
 
-  I2C_GenerateSTOP(I2C, ENABLE);
+  I2C_GenerateSTOP(I2C_B1, ENABLE);
 }
 
 int32_t getVolume()